A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5835-00-912-5656
NSN 5999-01-453-6594
NSN 6240-01-105-1399
NSN 5950-01-529-6542
NSN 6145-01-459-2287
NSN 5999-01-108-6159
NSN 6685-01-100-1071
NSN 6105-01-421-1493
NSN 5895-00-759-1012
NSN 5950-01-013-0049
NSN 6240-01-068-3099
NSN 5905-01-220-6663